A hybrid electric vehicle has a powertrain including an internal combustion engine, an electric machine, and a transmission coupled to controller(s) that control torque disturbances arising from changing output torques of the engine, electric machine, and transmission. A torque disturbance threshold is adjusted for driver comfort, and is used to respond to torque demand signals from the vehicle systems, including a battery charging subsystem, and a driver. The controller(s) respond to battery charge and driver demand torque signals, among others, and adjust engine and electric machine torque at a controlled rate and magnitude, using charge-torque-slew-rate, charge-torque, and other limits. Battery charging is similarly managed. The slew-rate, charge-torque, and other limits are adjusted as the torque disturbance threshold changes in response to changing performance of vehicle components, which thereby controls torque disturbances to be lower than the torque disturbance threshold for a plurality of engine, electric machine, and transmission operating conditions.


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    Titel :

    TORQUE DISTURBANCE MANAGEMENT SYSTEM AND METHOD


    Beteiligte:
    YAMAZAKI MARK STEVEN (Autor:in) / ZHANG CHEN (Autor:in)

    Erscheinungsdatum :

    09.08.2018


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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